Has anybody accomplished to connect the drain to waste with the new Pentair CC RP filters?. I bought a CCRP150 and the drain nozzle doesn't seem to have be standard, I wonder if anybody figured out how to connect it to a waste line.
If you really want to vacuum to waste, you could add a three way valve between the pump and the filter. Then attach a line to that to direct it where you want.
If you want to make draining easier, you should be able to find the right fittings at a store like Home Depot or Lowes.